| 
 | Từ điển WordNet v3.1 - WordNet Dictionary 
 
	
		| Father of the Submarine 
 
 American inventor who in 1775 designed a man-propelled submarine that was ineffectual but subsequently earned him recognition as a submarine pioneer (1742-1824)
 • Syn:
 Bushnell, David Bushnell
 • Instance Hypernyms:
 inventor, discoverer, artificer
 
 
 |  |  
		|  |  |